ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,717,285, issued on Aug. 25, was assigned to ABB SCHWEIZ AG (Baden, Switzerland).
"Method of performing circuit opening and closing operation, computer program, control system and power system" was invented by Elisabeth Lindell (Vasteras, Sweden) and Stefan Halen (Vasteras, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of performing a circuit opening and closing operation in a power system having a first phase, a second phase), and a third phase, the method including a) opening only a reference phase among the first phase, the second phase and the third phase such that a reference current of the reference phase is interrupted at a first ...